Pattern card cylinder for jacquard looms



June 30, 1936.

H. v. FOSTER 2,045,946

PATTERN CARD CYLINDER FOR'JACQUARD LOOMS Filed April 25, 1955ooomoooooooo 7/- oooooooooooo i, ooooooeooooo eooo-ooooogoo PatentedJune 30, 1936 PATENT Price PATTERN CARD CYLINDER FOR JACQUARD LOOMSHerbert V. Foster, Providence, R. I, assignor to Crompton & KnowlesJacquard & Supply Company, Pawtucket, R. I., a corporation ofMassachusetts Application April 25, 1935, Serial No. 18,096

3 Claims.

This invention relates to Jacquard looms and more particularly to thecylinders by which the pattern cards are successively presented to thejacquard needles.

In the operation of such looms, it is essential that accurate alignmentof the cards and needles be maintained at all times, as otherwise anincorrect fabric may be woven. It has been found difficult to maintainsuch accurate alignment when the cylinder gudgeons become worn, and therepair or replacement of a worn cylinder has been a matter ofconsiderable diificulty and. substantial expense.

It is the general object of my invention to provide improvements in theconstruction of pattern card cylinders for Jacquard looms, by whichimprovements the useful life of a cylinder may be indefinitely prolongedat negligible expense, and by which improvements worn cylinders can becheaply and easily restored to satisfactory operative condition.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawing, in which Fig.1 is a front elevation, partly in section, showing a portion of ajacquard cylinder and bearing embodying my improvements, and

Fig. 2 is an end elevation, looking in the direction of the arrow 2 inFig. 1.

Referring to the drawing, I have shown a portion. of a jacquard cylinderI having a gudgeon I I fixed in each end thereof. Commonly the cylinderI0 is formed of wood and the gudgeons I I are firmly secured therein.

The cylinder I0 is provided with the usual alignment members I2, one ateach corner of the cylinder and cooperating with a pressor member I3yieldingly forced downward by a spring I 4 and effective to hold thecylinder accurately in some one of its four operative positions.

In the preferred construction of my invention, I provide each gudgeon IIwith a closely fitting sleeve 20 which may be secured to the gudgeon bya collar 2| fitting over the sleeve and having a set-screw 22 threadedin the collar and extending through an opening in the sleeve toengagethe gudgeon II. The sleeves 20 are preferably formed of hardened steeland are accurately finished both inside and out.

Each sleeve 20 extends into an anti-friction bearing, shown herein as ofthe roller type and comprising rollers 31] mounted within a hardenedouter ring or runway 3| which in turn is mounted in a casing 32. Thecasing 32 preferably contains a chamber 33 which may be supplied withlubricant through a suitable pressure connection 34. This lubricantprovides efiicient lubrication for the roller bearing.

The casing 32 fits closely in an opening 35 in a bearing member 36 andmay be secured therein by a set-screw 37 and lock nut 38. The bearingmember has a bolt and slot connection with a bracket or stand it whichin turn is bolted to the jacquard slide shaft, not shown.

The bearing member 38 may be vertically adjusted relative to the bracket-50 by means of an adjusting screw 42 and nut 43, said screw beingthreaded in an oifsetprojection 44 at the upper end of the bearingmember 36. After being vertically adjusted, the bearing member may besecured in adjusted position by a clamping bolt 45.

With this construction, it will be. evident that the cylinder I0,gudgeons I I and sleeves ZII rotate as a. unit within the rolls or othersuitable anti-friction members. The life of the cylinder is greatlyprolonged for the following reasons:

In the first place, it has been found impractical to provide hardenedgudgeons for wooden pattern cylinders and consequently the gudgeons havebeen subject to relatively rapid wear. With my improved construction,there is no wear on 30 the gudgeons themselves and the hardened sleeves20 are adapted to resist wear for a long period of time. If, however, asleeve 20 becomes worn, it may be readily removed and replaced attrifling expense, after which the cylinder is practically as good asnew.

Furthermore, I find that the sleeves 20 may be applied to the worngudgeons of cylinders already in use, as these gudgeons are commonlyworn only in certain places and have a sufiicient portion of theoriginal contour to accurately center the sleeve thereon. Consequentlythe restoration of worn cylinders may be accomplished at greatly reducedexpense, as compared to the cost of the previous restoration.

If the rolls 30 or rings 3| should become worn, these parts also may bereplaced at slight expense.

I have thus improved the construction and operation of pattern cardcylinders in Jacquard looms and have provided a construction by 5 whichrepairs may be cheaply and easily accomplished when the same becomesnecessary.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than 55 asset forth in the claims, but what I claim is:-

1. In a Jacquard loom, a pattern card cylinder having end'gudgeons, asleeve for each gudgeon, means to detachably secure said sleeves on saidgudgeons and to permit convenient removal and replacement of saidsleeves, and an anti-friction bearing surrounding and supporting eachsleeve. 2. In a Jacquard loom, a pattern card cylinder having endgudgeons, a sleeve for each gudgeon having a transverse openingtherethrough, a collar surrounding each sleeve and having a setscrewextending through said transverse opening and engaging the associatedgudgeon, and an sleeve, and means to removably secure each bear- 10 ingin operative position.

HERBERT v. FOSTER.

